Calculate your Wilks coefficient to compare powerlifting performance across weight classes and genders. The Wilks formula standardizes your total (squat + bench + deadlift) relative to bodyweight, enabling fair competition and progress tracking.
The Wilks coefficient is a mathematical formula that levels the playing field in powerlifting by accounting for bodyweight differences. A 500 lb total at 150 lb bodyweight is more impressive than the same total at 250 lb bodyweight—Wilks quantifies this difference.
The formula uses gender-specific coefficients and your bodyweight to calculate a multiplier. Your total (squat + bench + deadlift) is multiplied by this coefficient to produce your Wilks score. Higher scores indicate greater relative strength regardless of weight class.
These classifications are based on years of competitive powerlifting data. Your score reflects your strength level relative to your bodyweight.
This example demonstrates how Wilks enables fair comparison between lifters of different sizes. Both lifters achieve similar Wilks scores despite vastly different absolute totals.
| Lifter | Bodyweight | Squat | Bench | Deadlift | Total | Wilks |
|---|---|---|---|---|---|---|
| Lifter A (Male) | 165 lb / 75 kg | 405 lb | 275 lb | 495 lb | 1,175 lb | 425 |
| Lifter B (Male) | 242 lb / 110 kg | 585 lb | 385 lb | 675 lb | 1,645 lb | 420 |
Despite Lifter B having a 470 lb higher total, both lifters have nearly identical Wilks scores, indicating similar relative strength for their respective bodyweights.
Many powerlifting meets award "Best Lifter" based on the highest Wilks score, regardless of weight class. This recognizes the most impressive performance relative to bodyweight.
Example: A 148 lb lifter with a 1,200 lb total (Wilks ~450) could beat a 242 lb lifter with a 1,800 lb total (Wilks ~440) for best lifter.
Track your Wilks score over time to measure true strength progress, especially if your bodyweight changes. A rising Wilks means you're getting stronger relative to your size.
Goal Setting: Aim to increase your Wilks by 20-30 points per year as an intermediate lifter, 10-15 as advanced.
Updated coefficients based on more recent data. Generally produces slightly lower scores than classic Wilks. Some federations have adopted it, while others still use the original formula.
Newer formula that addresses some statistical issues with Wilks. Produces different scores but serves the same purpose. Used by some international federations.
Official formula used by the International Powerlifting Federation. Similar concept but different calculation method. Required for IPF-sanctioned competitions.
Older formula that preceded Wilks. Less commonly used today but still appears in some federations and historical records.
The formula may slightly favor lighter or heavier lifters at the extremes. Most accurate for lifters between 120-300 lb bodyweight.
Raw and equipped lifting produce different totals. Compare Wilks scores only within the same equipment category (raw vs single-ply vs multi-ply).
Different federations have different judging standards. A 500 Wilks in one federation may not equal 500 in another due to depth requirements, pause commands, etc.
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